1QC Advanced Alumina-Carbon Slide Gate System with Precise Flow Control
SNREF Slide Gate Plate adopts High quality bauxite material , also takes tabular alumina, carbonaceous material and zirconia-containing material as main raw materials, adds in high performance antioxidants, uses phenolic resin as binder, formed under high-pressure and burned under high temperature. The slide plates have the advantages of high strength, good erosion resistance, thermal shock resistance and good stability etc., mainly used in large and medium-sized ladle.
The 1QC ladle slide gate is a crucial device for controlling molten steel in the continuous casting process of steel plants. It is installed at the bottom of the ladle and is mainly used to precisely adjust the flow rate of molten steel from the ladle to the tundish, ensuring a balance between the inflow and outflow of molten steel, which makes the continuous casting operation easier to control.
Structural Composition
- Mechanical Part: Composed of components such as the base, support, sliding trolley, spring assembly, and drive assembly. The sliding trolley can slide back and forth within the support. The spring assembly creates a constant and uniform interfacial pressure on the active interface, and the drive assembly drives the sliding trolley to move back and forth to achieve the throttling of molten steel.
- Refractory Part: Usually includes upper and lower slide plates and a lower nozzle. The 1QC ladle slide gate plate is made of aluminum - carbon, aluminum - zirconium - carbon materials, with corundum, fused corundum, zirconium corundum, and zirconium mullite as the main raw materials. Metal micropowder and fine powder are added to improve the high - temperature performance of the slide gate plate. Phenolic resin and silica - modified resin with high residual carbon and solid content are used as bonding agents.
Working Principle
The upper slide plate is fixed, and the lower slide plate is movable. By sliding the lower slide plate relative to the upper slide plate through the sliding mechanism, the opening and closing of the molten steel flow hole are driven to adjust the flow rate of molten steel. When the inner holes of the upper and lower slide plates overlap, the opening of the nozzle is the largest, and when they do not overlap, the nozzle is closed.
1QC Advanced Alumina-Carbon Slide Gate System with Precise Flow Control
High - Temperature Resistance and Erosion Resistance:
The refractory materials used have excellent high - temperature performance, strong erosion - resistance to molten steel and slag, and good thermal shock stability, which can withstand the rapid temperature changes, scouring of molten steel, and erosion of slag during the casting process, and have a long service life.
Accurate Flow Control:
It can accurately adjust the flow rate of molten steel, ensuring a stable and uniform supply of molten steel during the continuous casting process, which is beneficial to improving the quality of steel products.
Good Sealing Performance:
The sliding plates have a smooth surface and high flatness, ensuring a tight contact between the upper and lower slide plates, preventing molten steel from leaking during the casting process.
Easy to Operate and Maintain:
The mechanical structure is simple and reasonable, easy to operate and maintain, which can improve the production efficiency of steel plants and reduce labor intensity.
| Chemical and Physical Properties |
Ladle Slide Gate Plate (General) |
| Magnesia material |
Al-C |
Al- Zr-C |
| apparent porosity % max |
10 |
8 |
8 |
| Bulk Density g/cm3 min |
3.0 |
3.05 |
3.1 |
| Compressive strength MPa min |
120 |
120 |
120 |
| Al2O3 % min |
8 |
85 |
85 |
| ZrO2 % min |
|
|
4 |
| C % min |
3 |
3 |
3 |
| MgO % |
65 min |
|
|
| Service Life heats |
1-2 |
1-3 |
1-5 |
Service Result for slide gate plate and nozzle system:
Service life depends on many points:
1)Different Raw Material,
2)Production Process(Firing temperature, oil immersion, drying temperature...)
3)Steel type
4)Steel making condition
5)Different operation mode
And so on....
Shandong Sinorefractory New Materials Co.,Ltd (SinoRefractory)has been focusing on international marketing of flow control refractories in iron and steel industry for 17 years.
SinoRefractory is the second generation of refractories export enterprise developed out of EMEI Group.Supported by one of China's largest production bases in functional refractory materials.
Through years of development in the field of exporting top quality refractories to worldwide markets,SinoRefractory aims at researching,producing,marketing and exporting high standard Ladle slide gate plate,Ladle Nozzles,Well blocks,Purging plugs,Nozzle stuffing sand,Refractory castables, Slide gate Mechanisms etc.
Up to now,SinoRefractory has supplied high quality refractory products and services to nearly 70 top-hundred global steel enterprises.
SinoRefractory will always put clients'interest in the first place,striving to provide a wide range of services,including technical solution,pre-sales support,after-sales services,installation team support,professional know-how according to the changing of steelmaking condition,etc.
We are not only selling products,we are more focused on supporting,developing and growing together with clients.
Ladle Refractory Slide Gate Plate in Steel Mill Pant, for flow control the steel molten.
Below are some FAQ and answers about ladle and tundish flow control refractories:
Q: What are the requirements for refractories for ladle?
A: The requirements of refractories for ladle mainly include:
* high temperature resistance
* thermal shock resistance
* resistance to the erosion of the slag
* high temperature with sufficient mechanical strength
* the lining has a certain degree of expansion
Q:What are the reasons for the destruction of refractories for ladle?
A: The main causes of damage are as follows:
When the ladle transports high-temperature molten steel, the high-temperature molten steel and slag at about 1680ºC scour and erode it, especially in the slag line part, the scouring and erosion is more serious, and it is an important factor to decide the service life of the ladle.
LF and other extra-oven refining treatment on the unburnt brick damage is serious.
Q:What steel grades are different materials of slide plate bricks suitable for respectively?
A: Different materials of slide plate bricks are applicable to different steel grades. For example,
Al2O3-ZrO2-C slide gate plate can be used as ladle sliding gate plate due to its excellent erosion resistance and thermal shock stability, which can adapt to the casting of various steel grades, and ther are the following materilas based on customer's steel making condition: the MgO-C, MgO-Al-C, MgO-Al-C, MgO-Al-C, MgO-Al-C, MgO-Al-C, MgO-Al-C, MgO-Al-C, MgO-Al-C, and so on.
For more details, feel free to send inquiry to us.
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